Home / 21,124.56-29,151.54-11,692.92

Finding the Fourth Proportional to 21,124.56, 29,151.54 and 11,692.92

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Solution

The fourth proportional to 21,124.56, 29,151.54 and 11,692.92 is: 16,136.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,124.56 : 29,151.54 = 11,692.92 : x
  2. Step 2: Convert to fraction form
    21,124.56/29,151.54 = 11,692.92/x
  3. Step 3: Cross multiply
    21,124.56x = 29,151.54 × 11,692.92
  4. Step 4: Simplify right side
    21,124.56x = 340,866,625.10
  5. Step 5: Solve for x
    x = 340,866,625.10/21,124.56
  6. Step 6: Final answer
    x = 16,136.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.